Nothing Is Forever

I thought my system for posting the puzzles was rock-solid, but apparently I should have tried harder to make it so.

• Police public relations (5)
• Disease initially only infects those exercising (7)
• Eighty-five percent identify Iowa within Senegal (7)
• Young person around ape (5)
• Torch beheaded confused British mother (7)
• A hundred run, turning over mud (7)
• Ruined moai, five hundred on each side (6)